Nunziante delivered the news of this victory to King Ferdinand II himself, and was awarded the title of Commander of the Order of Saint George of the Reunion on 27 May 1848.

[1][3] The following year, in 1849, Sicily also revolted against the Bourbons, and Nunziante participated in the expedition commanded by Carlo Filangieri to reconquer the island.

[4] With the Bourbon Army at the gates of Palermo, the rebels made a request for amnesty in exchange for their surrender.

[2] Nunziante's esteem increased further when, on 7 July, he helped quash a mutiny of some Swiss units of the Bourbon Army.

[3] When Giuseppe Garibaldi landed in Marsala on 11 May 1860, Francis II appointed Ferdinando Lanza as commander of the Bourbon troops in Sicily.

However, Francis II's reinstatement of the Statuto Albertino on 25 June changed kingdom policy, and Antonio Spinelli di Scalea [it]'s government rejected the mission.

[2][3] On 2 July 1860, Nunziante resigned from the Bourbon Army, declaring that he could "no longer wear on his chest the decorations of a government who confuses honest, upright, and loyal men with those that only deserve contempt".

Cavour assigned Nunziante the task of inciting a liberal revolution in Naples in favor of Victor Emmanuel II.

[8] Nunziante, according to a letter to Cavour on 28 August, proposed demonstrations in favor of Victor Emmanuel II (rather than Garibaldi) to motivate the Bourbon troops to join the Italian cause.

In 1868, he was awarded the title of Grand Officer of the Order of the Crown of Italy and was appointed chairman of the Infantry Weapon Committee.